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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Define a path-based SP application override for /twofactor that uses MFA, which will create a new session initiator and therefore a new session context. When
you request /twofactor the SP will ignore any authentication result for /secure or /anything_else and should shoot you back to the IdP to log in with MFA. The config is a bit verbose/messy but it should work.<br>
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<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPApplicationOverride">https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPApplicationOverride</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> users [mailto:users-bounces@shibboleth.net]
<b>On Behalf Of </b>Hong Ye<br>
<b>Sent:</b> Tuesday, January 17, 2017 9:29 AM<br>
<b>To:</b> Shib Users <users@shibboleth.net><br>
<b>Subject:</b> how to make shibboleth SP re-send authnRequest for a different authnContext<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hello, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have installed a Shibboleth service provider v 2.6. The configuration is as following:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><Location /secure><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> AuthType shibboleth<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> ShibCompatWith24 On<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> ShibRequestSetting requireSession 1<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> require shib-session<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> ShibUseHeaders On<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> require valid-user<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"></Location><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><Location /twofactor><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> AuthType shibboleth<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> ShibUseHeaders On<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> ShibRequestSetting authnContextClassRef
<a href="http://cornell.edu/duo">http://cornell.edu/duo</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> require authnContextClassRef
<a href="http://cornell.edu/duo">http://cornell.edu/duo</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"></Location><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">When I don’t have a session and accessed /twofactor, I was promoted for primary authentication, then duo authentication. It worked as expected. But if I accessed /secure first, I was prompted for primary authentication and a session was
established. Then I accessed /twofactor, I got "You don't have permission to access /twofactor on this server.” I was hoping SP send a new authnRequest to IDP but it didn’t. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I also tried added following to shibboleth2.xml, but it doesn't help.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><SessionInitiator type="SAML2" id="Login" Location="/twofactor"<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> entityID="<a href="https://shibidp-test.cit.cornell.edu/idp/shibboleth">https://shibidp-test.cit.cornell.edu/idp/shibboleth</a>"<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> authnContextClassRef="<a href="http://cornell.edu/duo">http://cornell.edu/duo</a>"<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"> forceAuthn="true" /><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif">How to make SP re-send authnRequest?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal">Hong<o:p></o:p></p>
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